Well. You might have already thought of this but you can eat healthy foods like greens. And you can also exercise like stretching or going out for a 30 minutes run every day. These two thing do help your emun system witch fights off diseases. Also helpes you not get them as easaly
True not just fitness but diet as well
Criticizing yourself (negative self-talk)
Driving fast in a car.
Chewing your fingernails.
Becoming aggressive or violent (hitting someone, throwing or kicking something)
Eating too much or too little or drinking a lot of coffee.
Smoking or chewing tobacco.
Drinking alcohol.
i think these unhealthy ways usually don’t work very well for dealing with stress because most of these can cause more pain.